Answer:
The pilot's distance to the horizon is 267.2 kilometers.
Explanation:
According to the below diagram,
is the position of the pilot which is 5.6 kilometers above the earth's surface,
.
Earth has a radius of 6371 kilometers. That means,
kilometers.
So,
kilometers.
The pilot's distance to the horizon is
.
Using Pythagorean theorem, we will get........

(Rounded to the nearest tenth)
So, the pilot's distance to the horizon is 267.2 kilometers.